Kratky outdoors

Second time i topped this plan but is still close to 60cm will not be doing lst i cant believe how well kratky works will be interesting next year in full sun if it grows quicker and bigger as from what i have read you need airstones for oxygen seems like false info after this grow and water temperature needs to be about 22 celcius mine goes up to 40 celcius some days so also not true yeh so cant wait to see my buds also minimal airflow as it is contained in a 30 percent shade cloth